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Troubleshooting AMX
Error Number
Error 435
Error Code / System Message
435
Error Question
What should I check for error 435 on the AMX-4 Series?
Short Answer
1) Check that all contactors K1 thru K6 an AMX1 A4 panel pull in when PREP is pressed 2) Check installation of ribbon cable from 1 kHz Inverter Board to CPU Board or opto-couplers on 1 kHz Inverter Board
Possible Causes
1) Check that all contactors K1 thru K6 tap relays pull in when PREP is pressed (look closely at K4, K5, K6 relays) 2) Check installation of ribbon cable from 1 kHz Inverter Board to CPU Board or opto-couplers on 1 kHz Inverter Board 3) Bad CPU and 1kHz Broad
Troubleshooting Steps
1) Check that all contactors K1 thru K6 an AMX1 A4 panel pull in when PREP is pressed 2) Check installation of ribbon cable from 1 kHz Inverter Board to CPU Board or opto-couplers on 1 kHz Inverter Board
Parts Areas to Check
CPU Board; 1 kHz Inverter Board
For Related Models
AMX-4, AMX-4+, Definium AMX 700
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